Okazu is usually not a high-carbohydrate dish, like noodles - udon, soba, ramen, somen - or okonomiyaki. Generally, there should be just one kind of high-carbohydrate dish on the table. And I'm talking about eating at home here. Not in a ramen stand, where it's not uncommon to have a side order of rice to go with your oomorinegichaashuu. The Japanese will look at you funny if you try to eat both rice and soba at the same meal, for example. But then again these people put squid on their pizzas and natto on their toast.